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Technical
Grundfos: the Smart Pumps
Grundfos pumping solutions offer the most efficient and intelligent pump around. Circulators are responsible for up to 15% of the electricity bills of private households. With energy efficient technologies such as those pioneered by Grundfos, these costs can be reduced significantly.
The most outstanding energy efficient pump technology, the “Energy+ Award”, was recently awarded to a Grundfos product at the international trade fair “Mostra Convegno” in Milan.
The winning circulators consume 80% less electricity than conventional models. In the EU, the electricity consumption by circulators for heating purposes in households amounts to more than 50 TWh per year and causes CO2 emissions of more than 30 mi tons per year. The energy used by circulator pumps is equal to about 2 % of the overall electricity consumption in the EU.
That holds true whether you are in the market for small circulators or, in this case, pumps for wastewater pumping on any scale. Their objective is simple: to bring you the best, most efficient and most reliable wastewater pumps on the market. Reliability, greater durability, and better performance are key ingredients to their success.
As an organisation, Grundfos is an expert in wastewater treatment services and works with professionals involved in water treatment like contractors, consulting engineers or local authorities. One of the biggest technical developments in the world of pumps has been in the area of speed control, within its distribution systems.
Heating systems are designed to cater for the maximum conditions it might have to cope with during its lifespan. The more water you pack into the pipes, the more difficult it becomes to optimise. So if less pressure is needed, the pump is still running at full speed, which is a real waste of precious energy. Grundfos pumps have developed an intelligence over the years, moving from the physical to the electronic world – they are now elaborate machines and have developed micro frequency converters, which go into terminal boxes in the pumps.
This in turn has the capacity to save huge amounts of energy. There is a device or system curve as it is sometimes referred to and if larger volumes of water are pumped through the system, exponential resistance is the result. The opposite applies if you reduce the flow of water in the pipes. The energy saving here is enormous in terms of fixed prime movers, which consume huge amounts of energy and connect to power stations which in Ireland at least do produce CO2.
While such pumps are unseen and unheard of they do exist in very large numbers in all advances societies.
“If everyone switched over to speed control pumps to move water around the building it could free up huge amounts of energy – matching the pumps performance to the energy requirement in the building in a more intelligent way”.
In practical terms it means savings on fuel required to power the heating systems.
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